He's also made stops at Missouri, Alabama, Louisville, Colorado, Arizona, Wyoming and Texas-El Paso. Brown has coached in the NFL at Tampa Bay, Atlanta, San Diego, Tennessee, San Francisco and New Orleans.

Brown has ties to Brohm. He coached him for one season in the NFL and also spent three seasons at Louisville. He's coached three Thorpe Award winners during his nearly four-decade career. Brown arrived at Auburn in January 2017 as the program's defensive backs coach.

According to the USA Today, salary database, Brown's made $400,500 at Auburn, including a $25,000 retention bonus if he remained at the school on Dec 31, 2018. Jackson base salary last season at Purdue was $320,000.

Jackson spent two seasons with the Boilermakers but accepted a job as assistant head coach and defensive coordinator at Northern Illinois earlier this week.